/* === VARIÁVEIS DE CORES E FONTES === */
:root { 
  --ink: #121212; 
  --line: #cfe3ff; 
  --paper: #fffdf7; 
  --x-mark: #2b44a8; 
  --margin-line: rgba(255,0,0,.35);
  --margin-width: 86px;
  
  --color-primary: #3b82f6; /* Azul */
  --color-success: #22c55e; /* Verde */
  --color-warning: #f97316; /* Laranja */
  --color-danger: #ef4444;  /* Vermelho */
}

/* === ESTILOS GERAIS === */
* { box-sizing: border-box; }
body {
  margin: 0 0 80px 0; /* Espaço no final para o footer não cobrir conteúdo */
  font-family: "Gloria Hallelujah", "Gochi Hand", system-ui, sans-serif;
  color: var(--ink);
  background: 
    linear-gradient(90deg, var(--margin-line) 60px, transparent 60px),
    repeating-linear-gradient(0deg, var(--paper) 0, var(--paper) 28px, var(--line) 28px, var(--line) 29px);
  min-height: 100vh;
}

/* === LAYOUT PRINCIPAL (HEADER, MAIN, FOOTER) === */
header {
  position: sticky; top: 0; backdrop-filter: blur(6px);
  background: rgba(255,255,255,.85);
  border-bottom: 2px dashed #00000022;
  padding: 12px 18px 8px var(--margin-width);
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px;
  z-index: 10;
}
.paper {
  padding: 24px 16px 120px var(--margin-width);
  max-width: 1200px; margin: 0 auto;
}
.footer {
  position: fixed; bottom: 0; left: 0; right: 0;
  display: flex; justify-content: center;
  background: rgba(255,255,255,.82); padding: 12px; 
  border-top: 2px dashed #0003;
  z-index: 10;
}

/* === COMPONENTES E ELEMENTOS DE UI === */
h1 { margin: 0; font-size: 26px; letter-spacing: 1px; }
h2 { margin-top: 0; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

input[type="text"], input[type="number"] {
  font: inherit; padding: 6px 8px; border: 2px solid #000; background: #fffefa; border-radius: 8px;
  width: 100%;
}

button, .btn-like {
  font: inherit; padding: 6px 10px; border: 2px solid #000; background: #e0e0e0; color: #000;
  border-radius: 8px; cursor: pointer;
  box-shadow: 2px 2px 0 #000; transform: rotate(-.5deg);
  display: inline-block;
  transition: all 0.1s ease-in-out;
}
button:hover, .btn-like:hover { transform: translateY(-1px) rotate(-.5deg); box-shadow: 3px 3px 0 #000; }
button:active, .btn-like:active { transform: translateY(1px) rotate(-.5deg); box-shadow: 1px 1px 0 #000; }

/* Cores dos Botões */
.btn-primary { background-color: var(--color-primary); color: white; }
.btn-success { background-color: var(--color-success); color: white; }
.btn-warning { background-color: var(--color-warning); color: white; }
.btn-danger { background-color: var(--color-danger); color: white; }

ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }

.subject {
  display: grid; grid-template-columns: minmax(120px, 220px) 1fr auto;
  align-items: center; gap: 10px; padding: 6px; border-radius: 8px;
}
.subject[draggable="true"] { cursor: grab; }
.subject.drag-over { outline: 3px dashed var(--ink); }
.ghost { opacity: .5; }

.name {
  font-size: 26px; padding: 4px 8px; background: transparent; border-radius: 6px;
}
.name[contenteditable="true"]:focus { outline: 3px dashed #0007; background: #fffef4; }

.boxes { display: flex; flex-wrap: wrap; gap: 6px; padding: 6px 0; }
.controls { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.pill {
  font-size: 14px; padding: 4px 10px; border-radius: 999px; background: #000; color: #fff;
  font-weight: bold;
}

/* Checkbox */
.box {
  appearance: none; -webkit-appearance: none;
  width: 26px; height: 26px; border: 3px solid #000; border-radius: 5px;
  background: #fff; cursor: pointer; position: relative; display: inline-block;
  transform: rotate(-1deg); box-shadow: 1px 1px 0 #000;
}
.box:hover { transform: scale(1.02) rotate(-1deg); }
.box:checked {
  background-image:
    linear-gradient(45deg, transparent 44%, var(--x-mark) 45%, var(--x-mark) 56%, transparent 57%),
    linear-gradient(-45deg, transparent 44%, var(--x-mark) 45%, var(--x-mark) 56%, transparent 57%);
}
.progress { font-size: 16px; font-weight: bold; opacity: .9; }

/* Botão de Importar Arquivo */
.file { position: relative; }
.file input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.note { font-size: 14px; opacity: .8; }

/* Botão Flutuante (FAB) */
.fab {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  font-size: 36px;
  line-height: 1;
  background: var(--color-primary);
  color: white;
  border: 3px solid #000;
  box-shadow: 3px 3px 0 #000;
  z-index: 20;
}

/* === ESTILOS DOS MODAIS === */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 16px;
}
.modal-content {
  background: var(--paper);
  padding: 24px;
  border: 3px solid #000;
  border-radius: 12px;
  max-width: 450px;
  width: 100%;
  position: relative;
  box-shadow: 5px 5px 0 #000;
}
.modal-close {
  position: absolute;
  top: 8px; right: 8px;
  background: transparent; border: 0; box-shadow: none;
  font-size: 28px; line-height: 1; cursor: pointer;
  width: 32px; height: 32px;
}
.modal-overlay.hidden { display: none; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 4px; }
.io-actions, .danger-zone { display: grid; gap: 10px; margin: 16px 0; }
hr { border: 0; border-top: 2px dashed #0005; margin: 24px 0; }
.danger-zone p { margin-top: 0; opacity: 0.8; }


/* === RESPONSIVIDADE === */
@media (max-width: 680px) {
  body {
    background: 
      linear-gradient(90deg, var(--margin-line) 20px, transparent 20px),
      repeating-linear-gradient(0deg, var(--paper) 0, var(--paper) 28px, var(--line) 28px, var(--line) 29px);
  }
  header, .paper { padding-left: 28px; padding-right: 12px; }
  h1, .name { font-size: 22px; }
  .subject { grid-template-columns: 1fr; gap: 4px; }
  .controls { justify-content: flex-start; }
  .fab { bottom: 15px; right: 15px; width: 54px; height: 54px; font-size: 32px;}
}